# Promet NEF22 LED Signal Lamp, Green

**URL:** https://aio.lv/en/product--promet-w0-ld-nef22tld-z--12451378
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Promet
**Manufacturer code:** W0-LD-NEF22TLD Z
**EAN:** 5900103210137
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Promet NEF22 is a high-quality green LED signal lamp designed for industrial control panels and automation systems. This reliable indicator light provides clear visual status signaling for various electrical equipment. Built for durability and efficient performance, it is an essential component for monitoring processes in professional electrical installations.

## Long description

The Promet NEF22 LED signal lamp in green is a professional-grade indicator light engineered for integration into industrial control panels, automation systems, and electrical machinery. This component serves as a reliable visual status indicator, ensuring that operators can monitor equipment performance and process states with high clarity. Constructed with durability in mind, the lamp utilizes energy-efficient LED technology to provide long-lasting service in demanding industrial environments.
Advantages
The primary benefit of the Promet NEF22 is its robust design, which ensures consistent performance even in environments subject to vibration or frequent operation. The integrated LED light source offers superior brightness and visibility compared to traditional incandescent bulbs, while simultaneously reducing power consumption and heat generation. Its compact form factor allows for seamless installation into standard control panel cutouts, making it a versatile choice for both new system builds and maintenance upgrades.
Suitable for
Industrial control panels and automation cabinets
Electrical distribution boards
Monitoring status of machinery and production lines
Emergency stop or warning system indicators
This signal lamp may not be suitable for outdoor environments where it is directly exposed to harsh weather conditions, such as heavy rain or direct sunlight, unless it is installed within a protective, weather-rated enclosure. Additionally, it is not intended for use in high-voltage power circuits without appropriate step-down transformers or compatible control voltage interfaces.
Key specifications
Light source: Integrated LED
Color: Green
Mounting diameter: 22 mm
Application: Industrial signaling
Design: Compact panel-mount
To install the Promet NEF22, ensure the control panel is de-energized to prevent electrical hazards. Insert the lamp body into the pre-drilled 22 mm mounting hole and secure it firmly using the provided locking nut. Connect the electrical leads to the terminals according to the wiring diagram of your specific control system, ensuring the voltage matches the lamp's rated specifications before restoring power.
What to consider before purchase
Verify the control voltage of your system matches the lamp requirements
Ensure the mounting panel has a standard 22 mm diameter cutout
Confirm the color requirements for your specific signaling standard
For optimal longevity and performance, ensure that the lamp is installed in a clean environment free from excessive dust or corrosive chemicals. Periodically inspect the electrical connections to ensure they remain tight and free from oxidation, and replace the unit if the LED brightness significantly diminishes over time.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Promet products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Promet service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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